Terraform 0.12 (#20)

* Terraform 0.12

docker-demo-2/ecs.tf

@@ -1,28 +1,31 @@
 # cluster
 resource "aws_ecs_cluster" "example-cluster" {
-    name = "example-cluster"
+  name = "example-cluster"
 }
+
 resource "aws_launch_configuration" "ecs-example-launchconfig" {
   name_prefix          = "ecs-launchconfig"
-  image_id             = "${lookup(var.ECS_AMIS, var.AWS_REGION)}"
-  instance_type        = "${var.ECS_INSTANCE_TYPE}"
-  key_name             = "${aws_key_pair.mykeypair.key_name}"
-  iam_instance_profile = "${aws_iam_instance_profile.ecs-ec2-role.id}"
-  security_groups      = ["${aws_security_group.ecs-securitygroup.id}"]
+  image_id             = var.ECS_AMIS[var.AWS_REGION]
+  instance_type        = var.ECS_INSTANCE_TYPE
+  key_name             = aws_key_pair.mykeypair.key_name
+  iam_instance_profile = aws_iam_instance_profile.ecs-ec2-role.id
+  security_groups      = [aws_security_group.ecs-securitygroup.id]
   user_data            = "#!/bin/bash\necho 'ECS_CLUSTER=example-cluster' > /etc/ecs/ecs.config\nstart ecs"
-  lifecycle              { create_before_destroy = true }
-}
-resource "aws_autoscaling_group" "ecs-example-autoscaling" {
-  name                 = "ecs-example-autoscaling"
-  vpc_zone_identifier  = ["${aws_subnet.main-public-1.id}", "${aws_subnet.main-public-2.id}"]
-  launch_configuration = "${aws_launch_configuration.ecs-example-launchconfig.name}"
-  min_size             = 1
-  max_size             = 1
-  tag {
-      key = "Name"
-      value = "ecs-ec2-container"
-      propagate_at_launch = true
+  lifecycle {
+    create_before_destroy = true
   }
 }
 
+resource "aws_autoscaling_group" "ecs-example-autoscaling" {
+  name                 = "ecs-example-autoscaling"
+  vpc_zone_identifier  = [aws_subnet.main-public-1.id, aws_subnet.main-public-2.id]
+  launch_configuration = aws_launch_configuration.ecs-example-launchconfig.name
+  min_size             = 1
+  max_size             = 1
+  tag {
+    key                 = "Name"
+    value               = "ecs-ec2-container"
+    propagate_at_launch = true
+  }
+}